CVE-2026-12043
Essential information
- Published
- 12/06/2026 21:16
- Modified
- 12/06/2026 20:16
- Author
- The MITRE Corporation
- Creator
- The MITRE Corporation
- CVSS
- 8.8 HIGH (v3.1) 8.7 HIGH (v4.0)
- CISA KEV
- No
- CWE
- CWE-415
- CVSS vector
-
—
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS metrics
- Access vector
- —
- Access complexity
- —
- Authentication
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploitability
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
- Exploit code maturity
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- None
- User interaction
- Passive
- Confidentiality (V)
- High
- Confidentiality (S)
- None
- Integrity (V)
- High
- Integrity (S)
- None
- Availability (V)
- High
- Availability (S)
- None
- Exploit maturity
- NOT_DEFINED
Description
Improper handling of HPACK dynamic table size updates in the AWS Common Runtime aws-c-http library might allow a remote threat actor operating a server to cause memory corruption on a connecting client application, potentially leading to arbitrary code execution, via a crafted sequence of HTTP/2 HEADERS frames.
To remediate this issue, users should upgrade to aws-c-http version 0.11.0.
NVD status
- Status
- Received — CVE has been recently published to the CVE List and has been received by the NVD.
- Source
- ff89ba41-3aa1-4d27-914a-91399e9639e5
- NVD
- View on NVD
Affected products (CPE)
| Product | CPE |
|---|---|
| aws / aws-c-http | cpe:2.3:a:aws:aws-c-http:0.11.0:*:*:*:*:*:*:* |
| aws / aws-c-http | cpe:2.3:a:aws:aws-c-http:*:*:*:*:*:*:*:* |